Oris · Rectangular

Strap for Rectangular Date 24.5 Stainless Steel / Silver - Arabic

Takes 17 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width17 mm
Case diameter25 mm
Reference01 561 7656 4061-07 5 17 70FC
FamilyRectangular
MovementOris caliber Oris 561 hours, minutes, seconds | date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Rectangular 01 561 7656 4061-07 5 17 70FC, seen from the bench

The Oris Rectangular Date 24.5 Stainless Steel features a 24.50 mm stainless steel case with a 17 mm lug width, housing the manual Oris 561 caliber. The model displays hours, minutes, seconds, and date through a sapphire crystal. Its rectangular geometry, inherited from 1960s design, emphasizes functional linearity with a satin-finished steel case that reflects light according to viewing angle.

Frequently asked questions

What is the exact lug width of the Oris Rectangular 01 561 7656 4061-07 5 17 70FC?

The lug width measures precisely 17 mm, calculated from the outer edge of one lug to the outer edge of the opposite lug. This specification is less common than the standard 20 mm or 22 mm widths, requiring bespoke strap construction. Always verify the measurement before purchasing a replacement strap to ensure accurate compatibility.

Which strap material is most suitable for the Oris Rectangular with 17 mm lug width?

Alligator leather in fine grain preserves the minimalist aesthetic of the rectangular case. Aged vegetable-tanned calf develops a naturally evolving patina. For a sportive interpretation, cotton NATO straps create intentional visual contrast. Vulcanised rubber straps offer water resistance and mechanical durability, ideal for daily wear without compromise.

How do I change the strap on my Oris Rectangular whilst preserving case integrity?

Use a dedicated spring bar removal tool, keeping your wrist stable and applying gentle lateral pressure to extract the bars from the lugs. Never force vertically, as this risks scratching the brushed stainless steel surrounding the spring bar seats. If uncertain, consult a specialist—Casati Milano provides bespoke strap installation assistance for this precise operation.

Are aftermarket straps from MilanoStraps compatible with the Oris Rectangular?

Yes. MilanoStraps manufactures straps engineered to exact 17 mm lug width specifications, ensuring construction and aesthetic compatibility with your 01 561 7656 4061-07 5 17 70FC. Each strap includes proportionally dimensioned strap loops and keeper mechanisms dedicated to this precise width.

What is the expected lifespan of a leather strap before replacement becomes necessary?

A high-quality alligator or vegetable-tanned calf strap, subjected to measured daily wear (with occasional rotation), typically functions for 18–36 months. The patina that develops signals refinement, not deterioration. Occasional use extends durability substantially. Condition with natural oils every 12 months to preserve fibre elasticity and prevent premature cracking.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only